AVTMobile app requires enabled “Caller ID”.
If you are experiencing calling problems while using AVTMobile app please make sure your “Caller ID” is switched on in your Android’s settings.
1. Open Android standard “Calling” application and tap on “Settings”:
2. Tap on “Additional Settings” button:
4. Then select “Network default” option:
Now your Caller ID is active and you can make international calls via AVT Mobile.
Enjoy